A unique microstructure of the fiber networks deposited from foam-fiber suspensions

Ahmad M. Al-Qararah, Axel Ekman, Tuomo Hjelt, Jukka A. Ketoja (Corresponding Author), Harri Kiiskinen, Antti Koponen, Jussi Timonen

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)

Abstract

Fiber networks can be formed using aqueous foam as the suspending medium. The mean bubble size of the foam affects the resulting pore-size distribution of the fiber network. The foam-fiber interactions cause in particular an increase in the proportion of large micropores of the network, in comparison with the fiber networks that result from traditional water forming at a similar material density. Experiments were carried out for two different types of cellulose fiber, and characterization of the resulting pore structure was based on X-ray microtomography of the resulting fiber networks. The unique pore structure obtained with foam forming was reflected in various macroscopic properties of the networks, which provides an intriguing opportunity to control the material properties of fiber networks via the selection of their forming.
Original languageEnglish
Pages (from-to)544-553
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume482
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Keywords

  • Fiber network
  • Pore
  • Foam
  • Bubble
  • X-ray tomography
  • Structure
  • Strength

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